What is meant for data to be normally distributed?
A) It means that the standard deviation is 1.96.
B) It means that the mean, median and mode are the same value.
C) It means that the mean and the mode are the same value, but not necessarily the median.
D) It means that 90% of the values fall within one standard deviation of the mean.

Question

Quizplus · Accepted Answer

Normal distribution, also known as Gaussian distribution, is a statistical distribution in which the data tends to cluster around the mean, and the frequency of values higher or lower than the mean decreases as the distance increases from the mean.

In a normal distribution, the mean, median, and mode are equal, and the data is symmetrically distributed around this central point. Therefore, choice B is the correct answer.

What Is Meant for Data to Be Normally Distributed